Abstract : When using interactive graphical tools, users often have to manage a structure, i.e. the arrangement of and relations between the parts or elements of the content. However, the interaction with structures may be complex, and not well integrated with the interaction with the content. Based on contextual inquiries and past works, we have identified a number of concepts and requirements about the interaction with structure. We have explored two interactive tools: a new kind of property sheet that relies on the implicit struc-ture of graphics; and a property delegation graph to enable users to provide an explicit graphical structure. The interac-tions with the tools augment the scope of interactions to multiple objects.